半开式叶轮几何建模  

Geometry Modeling of Semi-open Impeller

作　　者：张豪[1] 吴伟红[1] 田燕宾 谢欣 

机构地区：[1]浙江省机械工业情报研究所,杭州310009 [2]石家庄海山实业发展总公司,石家庄050208

出　　处：《机械工程师》2016年第12期236-238,共3页Mechanical Engineer

摘　　要：文中采用NURBS方法,对给定的叶片的轴盘、盖盘曲线上的型值点进行插值计算,根据曲线曲率梳检查得到的轴盘、盖盘曲线是否光滑;再根据叶片的厚度向轴盘、盖盘曲线法矢量方向偏置,从而完成对叶片的几何建模。This paper carries out interpolation calculation of the data points on the shaft disc and cover plate curve using NURBS method. According to the curve curvature comb, the smooth of the shaft disc and cover plate curve are detected.And then offset of the shaft disc and cover plate curve along the normal vector direction is realized according to the thickness of the blade. Geometry modeling of the blade is finished.

关 键 词：插值计算 偏置 建模 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]